As smart home systems increasingly utilize AI technology, a user-friendly and intelligent smart home system becomes increasingly popular. However, a home generally consists of various devices with different capabilities from different vendors. Hence, it is difficult to apply high-performance security solutions to such a smart home system. Recently, although a blockchain is mentioned as an alternative, it needs a high computation resource because of the mining process of proof of work (PoW). Therefore, to apply a blockchain to a smart home system, it is necessary to address such a high resource problem. This article proposes a reverse hash chain as an alternative PoW for a blockchain-based smart home authentication. Since this proposed scheme needs small numbers of hash value computations for PoW, a user can apply a blockchain to a smart home.

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互联智能家居系统中基于反向哈希链路径的访问控制方案

随着智能家居系统越来越多地利用AI技术，用户友好型智能智能家居系统变得越来越流行。但是，家庭通常由具有不同供应商不同功能的各种设备组成。因此，难以将高性能的安全解决方案应用于这样的智能家居系统。最近，尽管提到了区块链作为替代方案，但由于工作量证明（PoW）的挖掘过程，它需要大量的计算资源。因此，要将区块链应用于智能家居系统，必须解决这样的高资源问题。本文提出了反向哈希链作为基于区块链的智能家居身份验证的替代PoW。由于此提议的方案需要进行PoW的少量哈希值计算，因此用户可以将区块链应用于智能家居。